I saw other topics about broken legs but I wanted to get your general experience (positive or negative) about this.
My young guinea pig girl got her back leg broken and it seems that it's very hard to treat this. Two options, surgery and add pin (but doctor says it's dangerous to anesthetize) or some kind of plaster. But apparently plaster are for fractures not far from each other (??).
I did choose plaster so now she has one and i must go back today to the doctor for change it and do X-ray again (fourth time...).
After i must go back maybe each weeks for check.
If i'm lucky and doctor could successfully join broken parts (and if she doesn't separate them again while moving), it may heal. But doctor didn't seem confident about it.

So what about you guys, for the ones who got this problem of broken leg, can you tell if you could heal it or if it didn't work.
I just need to hear if i can have hope or no. If you have any advice too.

Where was the leg broken? I've never heard of plaster being used, but my guinea pig broke his hip high up. We just basically confined him to a small cage where he couldn't move around much and just let nature heal it. He did fine. He's not all that fast moving around these days (but he's 3 now). I think the hip gives him a little trouble although he doesn't appear to be in pain.

As for anesthesia, it's not a big deal if the vet is experienced. Guinea pigs undergo it frequently for problems as simple as getting an xray taken. I lost a pig last fall who wass extremely ill, but during her last weeks, she was anesthesized several times and always recovered ok from it, despite the fact her health was so compromised.

I see you're in France. I have no idea how knowledgeable the vets are there, but does yours have a lot of experience with guinea pigs? Do you have options to find one who is?

My vet treats more the dogs and cats but when we talked about surgery he told he wasn't able to do it so he showed me one doctor (on a medical book) who could. And there were pictures of how they would proceed.

My plaster is made of some kind of scotch-tape and bandage. Doctor said it may be dangerous if bandage becomes dirty. My guinea pig could get sick or something like this.
But my girl is quite young (and it's a girl) so maybe it's more dangerous to anesthetize?

If your vet is not confident about anesthesia, don't do it. I don't know if we have any members in France who could recommend a vet who is knowledgeable with guinea pigs.

How old is your girl? Where is the break? How much is this limiting her movement and is she in pain? Sometimes they can heal on their own, but it depends.

I have a boar Henri (named after Toulouse Lautrec because of his leg) who broke his ankle before I got him. It healed wrong, but he still gets around fine. My vet said that she would have to re break it to put it right and recommended against that.

but my guinea pig broke his hip high up. We just basically confined him to a small cage where he couldn't move around much and just let nature heal it. He did fine.

I don't know so much about bones healing but mine, her leg and foot are not joined together anymore so for healing, first we must join the two parts. If we let like this, she maybe can live but it's like if she didn't have leg (because she cannot use anymore).

How old is your girl? Where is the break? How much is this limiting her movement and is she in pain? Sometimes they can heal on their own, but it depends.

She is a little more than 2 months old.
For the break, here is the X-ray. Left is first X-ray, before we did something, right is with the plaster. As you can see it's not perfectly joined together. But as i change it today, doctor may arrange it i think.

That looks very much like Henri's, exactly the same place (even the same leg, they could be twins). My vet said that a splint would have corrected it if it had been done right away. But the vet of the person I got him from said he needed surgery, which is why he didn't get a splint soon enough.

Even if it doesn't heal exactly normal, she should be okay with that. Henri's is worse than the corrected one with the plaster and he can run and jump with no trouble.

I went to see the exotic vet -the first doc advised me- and as he seems very good and competent (we did again X-ray but this time, it was 10 times clearer than before) and my girl was in good condition, good health, no stress during the previous days (just except during vet visits) I finally decided to go under surgery (i mean her, not me) for add pin and try to save her leg.
Vet seems pretty confident about anesthesia, he was more worried about problem which might happen after surgery.
She is small so it will be a hard work.
But seeing her at the beginning of her life with one leg-foot useless, it kills me. And if she can endure anesthesia, she can only ""get better"". I mean, in the worst case, she might get amputation or something like this but anyway her leg is already lost. It's not like a heart surgery, it's just the leg. So if anesthesia is ok, she ""might"" be ok.
Now, i'm waiting for vet's call after surgery (it's today or tomorrow, i don't know exactly the day/hour)

Is she getting any pain medicine? I don't know if they have it over in France, but here in the US we have two pain medications, carprofen and meloxicam, that are often prescribed to guinea pigs. It would be worth asking the vet about them to make your little pig's life a little easier while she heals.